Hi, Leeneia - yes, the "V" is pronounced as "F" in Schweizerdeutsch, just like in Hochdeutsch.

A couple of years ago, I spent a "Botanische Woche" in Zermatt, looking for wildflowers in the Alps with a group of Swiss people. I went with a group of 6 Californians as interpreter, although I wasn't really needed because all the people in the group spoke English. Most of the time, the Swiss people spoke Hochdeutsch with a pronounced accent, but they were easy for me to understand. They sometimes lapsed into a stronger dialect they called Schweizerdeutsch - but I think they did it just for fun and to show off a bit, and not as a normal practice. I was able to read newspapers and watch Swiss television and do business in stores with no problem in understanding.

-Joe-